63145230621 has 8 divisors (see below), whose sum is σ = 91847608224. Its totient is φ = 38269836720.

The previous prime is 63145230611. The next prime is 63145230649. The reversal of 63145230621 is 12603254136.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63145230621 - 2⁶ = 63145230557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1913491837 = 63145230621 / (6 + 3 + 1 + 4 + 5 + 2 + 3 + 0 + 6 + 2 + 1).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63145230611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956745886 + ... + 956745951.

It is an arithmetic number, because the mean of its divisors is an integer number (11480951028).

Almost surely, 2^63145230621 is an apocalyptic number.

It is an amenable number.

63145230621 is a deficient number, since it is larger than the sum of its proper divisors (28702377603).

63145230621 is a wasteful number, since it uses less digits than its factorization.

63145230621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913491851.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 63145230621 its reverse (12603254136), we get a palindrome (75748484757).

The spelling of 63145230621 in words is "sixty-three billion, one hundred forty-five million, two hundred thirty thousand, six hundred twenty-one".